Re: pgsql and lion : not taking good header at compilation. - Mailing list pgsql-novice

Pierre-Henry Frohring <pierre.julienr@gmail.com> writes:
> I'm doing my first steps with postgre, and it seems that the Lion (10.7.4) install of postgre interferes with my
installof postgre (9.1.4). 

First off, it's "postgres" not "postgre".

> g++ db_test.o -o db_test -L /usr/local/pgsql/bin -lpq
> Undefined symbols for architecture x86_64:
>   "_PQpingParams", referenced from:
>       _main in db_test.o
> ld: symbol(s) not found for architecture x86_64

Most likely you need -L /usr/local/pgsql/lib not .../bin.  Use "otool -L"
on the resulting executable to verify that it's linked to the right
libpq.dylib file.

            regards, tom lane